I don't know what you mean by LED.. just simple LED lights? (like ones found on printers and front of PC) or LED Displays? (Alarm clocks, Cellphones..)
If you're talking about both, then 3
1: My PC (1 green HDD light, 1 red power light)
2: My alarm clock
3: My cell phone (though doesn't light up unless I touch it)
you said 23+++ wtf??? How the hell do you come up with that number? you have a LED christmas tree or something?
~mOO
[edit]
Yea but they don't all light up simuntaeously in ur room @ nite..
that's what the original Q was asking.. actually NM..
lemme re-calculate..
1. alarm clock
2. HDD light (PC)
3. Power light (PC)
4. CDrom light
5. Printer light (power)
6. Printer light (resume button)
7. Monitor
8. My Labtec Subwoofer
9. Optical Mouse (if that's LED)
10. My Cell
11. CAPSLOCK
12. NUMLOCK
13. SCROLL LOCK
wow.. that's 13
~mOo